# frozen_string_literal: true
class StringScanner
# call-seq:
# scan_integer(base: 10)
#
# If `base` isn't provided or is `10`, then it is equivalent to calling `#scan` with a `[+-]?\d+` pattern,
# and returns an Integer or nil.
#
# If `base` is `16`, then it is equivalent to calling `#scan` with a `[+-]?(0x)?[0-9a-fA-F]+` pattern,
# and returns an Integer or nil.
#
# The scanned string must be encoded with an ASCII compatible encoding, otherwise
# Encoding::CompatibilityError will be raised.
def scan_integer(base: 10)
case base
when 10
scan_base10_integer
when 16
scan_base16_integer
else
raise ArgumentError, "Unsupported integer base: #{base.inspect}, expected 10 or 16"
end
end
end
